Dayangchem's R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. DayangChem can provide different quantities
Cas:32159-21-0
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inquirySichuan Tongsheng is the most strongest manufacturer and exporter of amino acids and their derivatives in China, we have the best quality and price. Guarantee high quality, competive price and reliable service. We fully compliance with ISO9001:20
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inquiryWITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et
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inquiryProduct Name Cbz-Pyr-OH CAS No. 32159-21-0 Synonyms Cbz-L-Pyroglutamic acid Purity 98.0% min Molecular Formula C13H13NO5 Molecular Weight 263.25 Appearance: white powder
With our good experience, we offer detailed technical support and advice to assist customers. We communicate closely with customers to establish their quality requirements. Consistent Quality Our plant has strict quality control in each manufacturin
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inquiryZ-PYR-OHCAS:32159-21-0 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high quality organic intermediates, st
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inquiryHenan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod
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inquiryOur advantages: 1, High quality with competitive price: 1) Standard:BP/USP/EP/Enterprise standard 2) All Purity≥99% 3) We are manufacturer and can provide high quality products with factory price. 2, Fast and safe delivery 1) Parcel can be
J&H CHEM R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. J&H CHEM has some Manufacturing base in Jia
Zibo Hangyu Biotechnology Development Co., Ltd is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemi
Cas:32159-21-0
Min.Order:10 Gram
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inquirySuperior quality, moderate price & quick delivery. Appearance:white powder Storage:Stored in cool, dry and ventilation place; Away from fire and heat Package:25kg/drum, or as per your request. Application:Used for APIs Transportation: as per yo
Cas:32159-21-0
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inquiryGMP standard, high purity, competitive price, in stock 1. Quick Response: within 6 hours after receiving your email. 2. Quality Guarantee: All products are strictly tested by our QC, confirmed by QA, and approved by a third-party lab in China, USA,
Cas:32159-21-0
Min.Order:1 Milligram
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Type:Trading Company
inquiryHigh quality, competitive price, fast delivery and first-class service we possesses have won the trust and praise of customers. Standard: BP/USP/EP The purity is equal or greater than 99%. As a supplier, we can provide high-quality products. Cle
Cas:32159-21-0
Min.Order:1 Metric Ton
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Type:Lab/Research institutions
inquiryWe Huarong Pharm can provide Customized Synthesis & Process R&D & APIs and intermediates Production & Quality Research & Registration Application, especially our GMP validation service which complies with SFDA, FDA, WHO and EU EMPA. O
Wuhu Nuovo Chemical Technology Co., Ltd. was established in August 2014, mainly engaged in the development, production and sales of ionic liquids, ribose, nucleosides, nucleotides and related chemicals; Products are mainly used in new energy, new ma
Appearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea
High quality,stable supply chain.Appearance:white/off-white or light yellow Storage:Store in cool and dry place, keep away from strong light and heat. Package:aluminum bottle,glass bottle,PTFE bottle,cardboard drum Application:This product can be use
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inquiryWe are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp
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inquiryStock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai
Cas:32159-21-0
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inquiryHigh purity, high success rate, short cycle and moderate priceAppearance:White powder solid Storage:Negative 20 degrees Celsius Package:5mg, 10mg 100mg, 1gram Application:Applied to various scientific research
Cas:32159-21-0
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inquiryLower price, sample is available,SDS test documents are available,large stock in warehouseAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:Fine chemical intermediates, used as the main raw material for the synthe
high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou
R & D enterprises have their own stock in stock Package:1kg Application:pharmaceutical intermediates
Cas:32159-21-0
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inquiryhigh quality Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea
best seller Application:API
Application:Intermidates
Ansciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali
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inquirysodium carbonate
benzyl chloroformate
L-Pyroglutamic acid
Cbz-L-pGlu-OH
Conditions | Yield |
---|---|
In 1,4-dioxane; sodium hydroxide | 87% |
Conditions | Yield |
---|---|
With triethylamine In acetonitrile for 1h; Ambient temperature; | 20% |
With 2,2,2-trifluoro-N,N-bis(trimethylsilyl)-acetamide; acetonitrile; methyloxirane 1.) r.t., 15 min, 2.) 1 h; Yield given. Multistep reaction; |
N-benzyloxycarbonyl-L-glutamic acid
Cbz-L-pGlu-OH
Conditions | Yield |
---|---|
With N-cyclohexyl-cyclohexanamine; dicyclohexyl-carbodiimide 1.) THF, 0 deg C; Multistep reaction; | |
Yield given. Multistep reaction; | |
Multi-step reaction with 2 steps 1: DCC / tetrahydrofuran / 0 °C 2: dicyclohexylamine (DCHA) / tetrahydrofuran / 0 °C View Scheme |
N-(benzyloxycarbonyl)-L-glutamic acid anhydride
Cbz-L-pGlu-OH
Conditions | Yield |
---|---|
With N-cyclohexyl-cyclohexanamine In tetrahydrofuran at 0℃; Yield given; |
2-bromothiophene
N-(benzyloxycarbonyl)-L-glutamic acid anhydride
B
N-benzyloxycarbonyl-L-glutamic acid
C
Cbz-L-pGlu-OH
Conditions | Yield |
---|---|
Stage #1: 2-bromothiophene With magnesium In tetrahydrofuran at 40℃; for 2h; Stage #2: N-(benzyloxycarbonyl)-L-glutamic acid anhydride In tetrahydrofuran at -78℃; for 4h; Stage #3: With citric acid In tetrahydrofuran at -78 - 20℃; Title compound not separated from byproducts; |
1-bromo-butane
N-(benzyloxycarbonyl)-L-glutamic acid anhydride
B
N-benzyloxycarbonyl-L-glutamic acid
C
Cbz-L-pGlu-OH
Conditions | Yield |
---|---|
Stage #1: 1-bromo-butane With magnesium In tetrahydrofuran at 40℃; for 2h; Stage #2: N-(benzyloxycarbonyl)-L-glutamic acid anhydride In tetrahydrofuran at -78℃; for 4h; Stage #3: With citric acid In tetrahydrofuran at -78 - 20℃; Title compound not separated from byproducts; |
3-methoxyphenyl bromide
N-(benzyloxycarbonyl)-L-glutamic acid anhydride
B
N-benzyloxycarbonyl-L-glutamic acid
C
Cbz-L-pGlu-OH
Conditions | Yield |
---|---|
Stage #1: 3-methoxyphenyl bromide With magnesium In tetrahydrofuran at 40℃; for 2h; Stage #2: N-(benzyloxycarbonyl)-L-glutamic acid anhydride In tetrahydrofuran at -78℃; for 4h; Stage #3: With citric acid In tetrahydrofuran at -78 - 20℃; Title compound not separated from byproducts; |
1-bromo-hexane
N-(benzyloxycarbonyl)-L-glutamic acid anhydride
B
N-benzyloxycarbonyl-L-glutamic acid
C
Cbz-L-pGlu-OH
Conditions | Yield |
---|---|
Stage #1: 1-bromo-hexane With magnesium In tetrahydrofuran at 40℃; for 2h; Stage #2: N-(benzyloxycarbonyl)-L-glutamic acid anhydride In tetrahydrofuran at -78℃; for 4h; Stage #3: With citric acid In tetrahydrofuran at -78 - 20℃; Title compound not separated from byproducts; |
phenylmagnesium chloride
N-(benzyloxycarbonyl)-L-glutamic acid anhydride
B
N-benzyloxycarbonyl-L-glutamic acid
C
Cbz-L-pGlu-OH
Conditions | Yield |
---|---|
Stage #1: phenylmagnesium chloride; N-(benzyloxycarbonyl)-L-glutamic acid anhydride In tetrahydrofuran at -78℃; for 4h; Stage #2: With citric acid In tetrahydrofuran |
phenyllithium
N-(benzyloxycarbonyl)-L-glutamic acid anhydride
C
N-benzyloxycarbonyl-L-glutamic acid
D
Cbz-L-pGlu-OH
Conditions | Yield |
---|---|
Stage #1: phenyllithium; N-(benzyloxycarbonyl)-L-glutamic acid anhydride In tetrahydrofuran at -78℃; for 4h; Stage #2: With citric acid In tetrahydrofuran |
N-(benzyloxycarbonyl)-L-glutamic acid anhydride
A
N-benzyloxycarbonyl-L-glutamic acid
B
Cbz-L-pGlu-OH
Conditions | Yield |
---|---|
Stage #1: N-(benzyloxycarbonyl)-L-glutamic acid anhydride With tert-butylmagnesium chloride In tetrahydrofuran at -78℃; for 4h; Stage #2: With citric acid In tetrahydrofuran | |
Stage #1: N-(benzyloxycarbonyl)-L-glutamic acid anhydride With phenylzinc chloride In tetrahydrofuran at -78℃; for 2h; Stage #2: With citric acid In tetrahydrofuran |
N-(benzyloxycarbonyl)-L-glutamic acid anhydride
C
N-benzyloxycarbonyl-L-glutamic acid
D
Cbz-L-pGlu-OH
Conditions | Yield |
---|---|
Stage #1: N-(benzyloxycarbonyl)-L-glutamic acid anhydride; Ph3MgLi In tetrahydrofuran at -78 - 20℃; Stage #2: With citric acid In tetrahydrofuran |
Cbz-L-pGlu-OH
methyl iodide
(5S)-N-(benzyloxycarbonyl)-5-methoxycarbonyl-2-pyrrolidinone
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine In dichloromethane | 98% |
With N-ethyl-N,N-diisopropylamine In dichloromethane for 6.5h; Heating / reflux; | 98% |
(2R,4'R,8'R)-α-tocopheramine
Cbz-L-pGlu-OH
B
N-methylmorpholine hydrochloride
Conditions | Yield |
---|---|
Stage #1: Cbz-L-pGlu-OH With 4-methyl-morpholine; isobutyl chloroformate In tetrahydrofuran at 0 - 20℃; for 2h; Stage #2: (2R,4'R,8'R)-α-tocopheramine With triethylamine In tetrahydrofuran at 0℃; | A 98% B n/a |
Cbz-L-pGlu-OH
B
N-methylmorpholine hydrochloride
Conditions | Yield |
---|---|
Stage #1: Cbz-L-pGlu-OH With 4-methyl-morpholine; isobutyl chloroformate In tetrahydrofuran at 0 - 20℃; for 2h; Stage #2: VESA-PEG-NH2 With triethylamine In tetrahydrofuran; water at 0℃; | A 98% B n/a |
tryptamine
Cbz-L-pGlu-OH
Conditions | Yield |
---|---|
In tetrahydrofuran Heating; | 90% |
Cbz-L-pGlu-OH
benzyl chloride
dibenzyl (2S)-5-oxotetrahydro-1H-pyrrole-1,2-dicarboxylate
Conditions | Yield |
---|---|
With triethylamine In acetone for 72h; Heating; | 85% |
Cbz-L-pGlu-OH
Conditions | Yield |
---|---|
With pyridine; di-tert-butyl dicarbonate; ammonium bicarbonate In 1,4-dioxane 4-16 h; | 84% |
1,2,3-Benzotriazole
Cbz-L-pGlu-OH
benzyl (2S)-2-(1H-1,2,3-benzotriazol-1-ylcarbonyl)-5-oxotetrahydro-1H-pyrrole-1-carboxylate
Conditions | Yield |
---|---|
Stage #1: 1,2,3-Benzotriazole With thionyl chloride In dichloromethane at 40 - 50℃; for 0.333333h; Stage #2: Cbz-L-pGlu-OH In dichloromethane at 20℃; for 2h; Further stages.; | 84% |
Cbz-L-pGlu-OH
tert-butyl N-benzyloxycarbonyl-L-pyroglutamate
Conditions | Yield |
---|---|
With perchloric acid In water at 20℃; for 16h; | 79% |
Cbz-L-pGlu-OH
N-methyl-m-toluidine
Conditions | Yield |
---|---|
With pyridine; 2,4,6-tripropyl-1,3,5,2,4,6-trioxatriphosphinane-2,4,6-trioxide In ethyl acetate at 20℃; for 12h; | 75% |
Conditions | Yield |
---|---|
Stage #1: Cbz-L-pGlu-OH With chloroformic acid ethyl ester; triethylamine In tetrahydrofuran at 0 - 20℃; for 1.5h; Stage #2: 8-amino quinoline In tetrahydrofuran at 20℃; for 6h; | 74% |
Cbz-L-pGlu-OH
4-methoxy-aniline
(S)-2-(4-Methoxy-phenylcarbamoyl)-5-oxo-pyrrolidine-1-carboxylic acid benzyl ester
Conditions | Yield |
---|---|
With 4-methyl-morpholine; chloroformic acid ethyl ester In ethyl acetate at -15 - 20℃; for 50h; | 68% |
Conditions | Yield |
---|---|
With chloroformic acid ethyl ester; triethylamine In tetrahydrofuran | 67% |
Cbz-L-pGlu-OH
isobutene
tert-butyl N-benzyloxycarbonyl-L-pyroglutamate
Conditions | Yield |
---|---|
With sulfuric acid In dichloromethane | 67% |
Stage #1: Cbz-L-pGlu-OH; isobutene With sulfuric acid In dichloromethane at 20℃; Cooling with ice; Stage #2: With sodium carbonate In dichloromethane; water | 67% |
With sulfuric acid In dichloromethane at 20℃; Cooling with ice; | 67% |
With sulfuric acid In dichloromethane at 20℃; Cooling with ice; | 67% |
Cbz-L-pGlu-OH
L-glutamic acid dibenzyl ester 4-toluenesulfonate
Z-pGlu-Glu(OBzl)-OBzl
Conditions | Yield |
---|---|
With benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; N-ethyl-N,N-diisopropylamine In dichloromethane | 63% |
Cbz-L-pGlu-OH
benzyl (2S)-2-(hydroxymethyl)-5-oxopyrrolidine-1-carboxylate
Conditions | Yield |
---|---|
Stage #1: Cbz-L-pGlu-OH With 4-methyl-morpholine; chloroformic acid ethyl ester In tetrahydrofuran at -10℃; Stage #2: With sodium tetrahydroborate In methanol at 0℃; | 61% |
Multi-step reaction with 2 steps 1: N-methyl morpholine / tetrahydrofuran / 0.08 h / -5 °C 2: NaBH4 / tetrahydrofuran View Scheme |
L-histidine methyl ester
Cbz-L-pGlu-OH
Conditions | Yield |
---|---|
With dicyclohexyl-carbodiimide In N,N-dimethyl-formamide; acetonitrile 1h at -10 deg C, then 12h at 4 deg C; | 55% |
Cbz-L-pGlu-OH
benzyl bromide
dibenzyl (2S)-5-oxotetrahydro-1H-pyrrole-1,2-dicarboxylate
Conditions | Yield |
---|---|
With potassium hydrogencarbonate In N,N-dimethyl-formamide for 18h; Ambient temperature; | 51% |
Cbz-L-pGlu-OH
3-chloro-benzenecarboperoxoic acid
(R)-2-(3-Chloro-benzoyloxy)-5-oxo-pyrrolidine-1-carboxylic acid benzyl ester
Conditions | Yield |
---|---|
With dicyclohexyl-carbodiimide In chloroform at 25℃; for 1h; | 42% |
Conditions | Yield |
---|---|
With chloroformic acid ethyl ester; triethylamine In tetrahydrofuran | 40% |
BOC-glycine
L-N-Boc-Ala
N-Boc-O-benzyl-L-threonine
Boc-Arg(Tos)-OH
BOC-O-benzyl-L-serine
Cbz-L-pGlu-OH
Boc-Asp(O-cyclohexyl)-OH
Boc-cysteine(4-Me-Bn)
Boc-(S)-Lys(2-Cl-Z)-OH
Nα-tert-butoxycarbonyl-1-formyl-L-tryptophan
N(α)-t-butoxycarbonyl-N(ϖ)-benzyloxymethyl-L-histidine
Conditions | Yield |
---|---|
Stage #1: Boc-cysteine(4-Me-Bn) With benzotriazol-1-ol In 1-methyl-pyrrolidin-2-one Automated synthesizer; Stage #2: With trifluoroacetic acid Stage #3: BOC-glycine; L-N-Boc-Ala; N-Boc-O-benzyl-L-threonine; Boc-Arg(Tos)-OH; BOC-O-benzyl-L-serine; Cbz-L-pGlu-OH; Boc-Asp(O-cyclohexyl)-OH; Boc-cysteine(4-Me-Bn); Boc-(S)-Lys(2-Cl-Z)-OH; Nα-tert-butoxycarbonyl-1-formyl-L-tryptophan; N(α)-t-butoxycarbonyl-N(ϖ)-benzyloxymethyl-L-histidine | 22% |
Cbz-L-pGlu-OH
N-benzyloxycarbonyl-L-glutamic acid-5-hydrazide
Conditions | Yield |
---|---|
With hydrazine hydrate |
acetic acid tert-butyl ester
Cbz-L-pGlu-OH
tert-butyl N-benzyloxycarbonyl-L-pyroglutamate
Conditions | Yield |
---|---|
With perchloric acid Yield given. Multistep reaction; | |
With perchloric acid Ambient temperature; Yield given; |
diethyl 1-aminoethylphosphonate
Cbz-L-pGlu-OH
Conditions | Yield |
---|---|
With dicyclohexyl-carbodiimide In dichloromethane at 0 - 20℃; for 6.5h; |
Cbz-L-pGlu-OH
L-tryptophan ethyl ester hydrochloride
N-carbobenzoxy-L-pyroglutamyl-L-tryptophan ethyl ester
Conditions | Yield |
---|---|
With chloroformic acid ethyl ester; triethylamine 1.) THF, 0 deg C, 30 min, 2.) r.t., 3 h; Yield given. Multistep reaction; |
Cbz-L-pGlu-OH
tert.-butyloxycarbonylalanyl-Nε-benzyloxycarbonyllysyl-serine methyl ester
Z-Pyr-Ala-Lys(Z)-Ser-OMe
Conditions | Yield |
---|---|
With 4-methyl-morpholine; benzotriazol-1-ol; methoxybenzene; trifluoroacetic acid 1.) room temperature, 20 min 2.) DMF, 0 deg C, overnight, 4 deg C; Yield given. Multistep reaction; |
Conditions | Yield |
---|---|
With 4-methyl-morpholine; triethylamine; isobutyl chloroformate 1.) THF, -20 deg C, 10 min, 2.) THF, DMF, H2O, RT, 1 h; Yield given. Multistep reaction; |
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